Embedded pipe threading device for building

By designing a pre-embedded conduit wiring device, and utilizing movable clamping and adjusting units, the problems of wire entanglement and wire detachment during the wire pre-embedded conduit wiring process were solved, and stable wire wiring in conduits of different sizes was achieved.

CN223665934UActive Publication Date: 2025-12-12SHANGHAI DEBI SPACE DESIGN CO LTD
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Patent Information

Application Number
CN202423033183.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-12-12
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing electrical conduit installations are prone to problems such as tangling and wire detachment during the wiring process.

Method used

A pre-embedded conduit threading device is designed, including a first base unit, a first traction unit, a clamping unit, a second base unit, an adjustment unit, and a second traction unit. By setting a movable clamping unit on the outside of the first base unit and setting a second base unit on the inside to cooperate with the adjustment unit, the length of the clamping unit can be adjusted to adapt to pipes of different sizes, avoiding wire tangling and wire detachment.

Benefits of technology

This effectively prevents wires from getting tangled during the wiring process and steel wire joints from coming loose, improving construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an embedded pipe threading device for a building. The embedded pipe threading device comprises a first base unit, a first traction unit, an abutting unit, a second base unit, an adjusting unit and a second traction unit. Wherein the first traction unit is distributed on the outer side of the first base unit in a surrounding manner; the abutting unit is movably arranged in the first base unit. The second base unit is arranged on the inner side of the first base unit and is in sliding connection with the inner end of the abutting unit. The adjusting unit is movably arranged at the top of the second base unit; the second traction unit is arranged at the bottom of the second base unit. The electric wire embedded pipe has the advantages that the movable abutting unit is arranged on the outer side of the first base unit, so that the electric wire embedded pipe can be suitable for threading pipelines of different sizes, meanwhile, winding of an electric wire in the threading process can be avoided, and the problems that the electric wire is prone to winding during threading of an existing electric wire embedded pipe, and the binding position of the electric wire and a steel wire is prone to falling off are solved.
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Description

Technical Field

[0001] This utility model relates to the field of building decoration construction technology, and in particular to a pre-embedded conduit wiring device for buildings. Background Technology

[0002] Pre-embedded wiring refers to the process of pre-installing electrical conduits within or outside a building, in accordance with design requirements, in structures such as walls, floors, or ground. To improve the safety of pre-embedded wiring and extend the lifespan of the wire insulation, conduit installation is generally used.

[0003] The existing procedure for wiring through conduit typically involves binding the ends of multiple wires to a steel wire, which is then passed through the pre-buried conduit, pulling the wires through. However, multiple wires may twist and entangle during this process, and the steel wire may also detach from the wires, reducing construction efficiency.

[0004] Currently, no effective solutions have been proposed for the problems existing in the relevant technologies, such as the easy tangling of wires in the pre-buried conduit and the easy detachment of the wires at the joints with the steel wires. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a pre-embedded conduit wiring device for buildings, which solves problems such as easy tangling of wires and easy detachment at the connection with steel wire in existing pre-embedded conduits.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pre-embedded conduit wiring device for buildings, comprising:

[0008] First base unit;

[0009] The first traction unit is distributed around the outside of the first base unit and is used to pull and fix the wire.

[0010] A clamping unit is movably disposed inside the first base unit and is slidably connected to and limited by the first base unit. The clamping unit can reciprocate along the centripetal direction of the first base unit to abut against the inner wall of the pipe so that the first base unit does not shift.

[0011] The second base unit is disposed inside the first base unit and is slidably connected to the inner end of the abutting unit;

[0012] An adjustment unit is movably disposed on the top of the second base unit. The bottom end of the adjustment unit is connected to the inner end of the abutting unit. The adjustment unit can reciprocate along the axial direction of the second base unit to drive the abutting unit to reciprocate along the centripetal direction of the first base unit.

[0013] The second traction unit is located at the bottom of the second base unit and is used to connect with the traction wire.

[0014] In some embodiments, the first base unit includes:

[0015] A first base element, wherein a second base unit is disposed on the inner side of the first base element, and a first traction unit is distributed around the outer side of the first base element;

[0016] A plurality of first sliding elements are distributed around the interior of the first base element and are slidably connected to the abutting unit. The first sliding elements are disposed adjacent to the first traction unit.

[0017] A plurality of first limiting elements are respectively disposed on the inner end of the corresponding first sliding element and abut against the abutting unit.

[0018] In some embodiments, the first base unit further includes:

[0019] A plurality of first groove elements are distributed around the outside of the first base element and cover the outer end of the corresponding first sliding element, and are engaged with the outer end of the abutment unit.

[0020] In some embodiments, the first traction unit includes:

[0021] A plurality of second slot elements are distributed around the outside of the first base unit for threading wires.

[0022] A plurality of first traction elements are distributed around the first base unit for fixing the wires.

[0023] In some embodiments, the clamping unit includes:

[0024] A plurality of abutting elements are arranged around the outer side of the first base unit. The abutting elements can reciprocate along the centripetal direction of the first base unit to abut against the inner wall of the pipe so that the first base unit does not shift.

[0025] A plurality of third sliding elements are disposed on the inner side of the corresponding abutting elements and are slidably connected to the first base unit and the second base unit respectively. The inner end of the third sliding element is connected to the bottom end of the adjusting unit.

[0026] A plurality of elastic elements are respectively sleeved on the corresponding third sliding element, and the ends of the elastic elements respectively abut against the clamping element and the first base unit.

[0027] In some embodiments, the clamping unit further includes:

[0028] A plurality of second limiting elements are disposed at the inner end of the corresponding third sliding element and are limitedly connected to the first base unit to prevent the abutting element from separating from the first base unit.

[0029] In some embodiments, the second base unit includes:

[0030] The second base element is disposed inside the first base unit;

[0031] A plurality of second sliding elements are distributed around the interior of the second base element and are slidably connected to the inner end of the abutment unit;

[0032] A first adjusting element is disposed on top of the second base element and is movably connected to the adjusting unit;

[0033] A plurality of support elements are arranged around the outside of the second base element and connected to the first base unit.

[0034] In some embodiments, the adjustment unit includes:

[0035] The second adjusting element is movably disposed on the top of the second base unit. The second adjusting element can reciprocate along the axial direction of the second base unit to drive the pressing unit to reciprocate along the centripetal direction of the first base unit.

[0036] A plurality of flexible connecting elements are wound around the bottom end of the second adjusting element, and the ends of the flexible connecting elements are connected to the inner end of the abutting unit.

[0037] In some embodiments, the adjustment unit further includes:

[0038] A plurality of isolation elements are spaced apart at the bottom end of the second adjusting element, and a corresponding flexible connecting element is provided between two adjacent isolation elements to prevent the plurality of flexible connecting elements from tangling.

[0039] In some embodiments, the second traction unit includes:

[0040] The second traction element is disposed at the bottom of the second base unit and is used to connect with the traction wire.

[0041] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0042] This utility model discloses a pre-embedded conduit wiring device for buildings. By setting a movable clamping unit on the outside of the first base unit and setting a second base unit on the inside of the first base unit, the length of the clamping unit can be adjusted in conjunction with the adjustment unit. It can be used for wiring of pipes of different sizes, and at the same time, it can avoid the wires from getting tangled during the wiring process. It solves the problems of wires easily getting tangled and easily falling off at the binding point with the steel wire in existing wire pre-embedded conduits. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a pre-embedded pipe wiring device according to an embodiment of the present utility model;

[0044] Figure 2 This is a schematic diagram of the first base unit according to an embodiment of the present utility model;

[0045] Figure 3 This is a schematic diagram of the first traction unit according to an embodiment of the present utility model;

[0046] Figure 4 This is a schematic diagram of the clamping unit according to an embodiment of the present utility model;

[0047] Figure 5 This is a schematic diagram of the second base unit according to an embodiment of the present utility model;

[0048] Figure 6 This is a schematic diagram of the adjustment unit according to an embodiment of the present utility model;

[0049] Figure 7 This is a schematic diagram of the second traction unit according to an embodiment of the present utility model.

[0050] The reference numerals in the accompanying drawings are: 10, first base unit; 11, first base element; 12, first sliding element; 13, first limiting element; 14, first groove element;

[0051] 20. First traction unit; 21. Second slot element; 22. First traction element;

[0052] 30. Anchoring unit; 31. Anchoring element; 32. Third sliding element; 33. Elastic element; 34. Second limiting element;

[0053] 40. Second base unit; 41. Second base element; 42. Second sliding element; 43. First adjusting element; 44. Support element;

[0054] 50. Adjustment unit; 51. Second adjustment element; 52. Flexible connection element; 53. Isolation element;

[0055] 60. Second traction unit; 61. Second traction element. Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0057] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0058] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0059] Example 1

[0060] An illustrative embodiment of this utility model, such as Figure 1As shown, a pre-embedded conduit wiring device for buildings includes a first base unit 10, a first traction unit 20, a clamping unit 30, a second base unit 40, an adjustment unit 50, and a second traction unit 60. The first traction unit 20 is distributed around the outside of the first base unit 10 and is used to pull and fix the wire; the clamping unit 30 is movably disposed inside the first base unit 10 and is slidably connected and limited to the first base unit 10. The clamping unit 30 can reciprocate along the centripetal direction of the first base unit 10 and is used to abut against the inner wall of the pipe to prevent the first base unit 10 from shifting; the second base unit 40 is disposed inside the first base unit 10 and is slidably connected to the inner end of the clamping unit 30; the adjusting unit 50 is movably disposed on the top of the second base unit 40 and the bottom end of the adjusting unit 50 is connected to the inner end of the clamping unit 30. The adjusting unit 50 can reciprocate along the axial direction of the second base unit 40 and is used to drive the clamping unit 30 to reciprocate along the centripetal direction of the first base unit 10; the second traction unit 60 is disposed at the bottom of the second base unit 40 and is used to connect with the traction wire.

[0061] like Figure 2 As shown, the first base unit 10 includes a first base element 11, a plurality of first sliding elements 12, and a plurality of first limiting elements 13. A second base unit 40 is disposed inside the first base element 11, and a first traction unit 20 is distributed around the outside of the first base element 11. A plurality of first sliding elements 12 are distributed around the inside of the first base element 11 and are slidably connected to abutting units 30, with the first sliding elements 12 being adjacent to the first traction units 20. A plurality of first limiting elements 13 are respectively disposed at the inner ends of the corresponding first sliding elements 12 and abut against the abutting units 30.

[0062] In some of these embodiments, the first base element 11 has an annular cross-section.

[0063] In some of these embodiments, the first base element 11 is a ring-shaped threading plate.

[0064] The first sliding element 12 is disposed through the outer and inner sides of the first base element 11.

[0065] The dimensions of the first sliding element 12 are matched with the dimensions of the first base element 11. Generally, the radial dimension (e.g., diameter) of the first sliding element 12 is smaller than the thickness of the first base element 11.

[0066] In some of these embodiments, the first sliding element 12 has a circular cross-section.

[0067] In some of these embodiments, the first sliding element 12 is a first slide rail.

[0068] In some of these embodiments, the first limiting element 13 is integrally formed with the first base element 11.

[0069] The number of first limiting elements 13 matches the number of first sliding elements 12. Generally, the number of first limiting elements 13 is equal to the number of first sliding elements 12, that is, the first limiting elements 13 and the first sliding elements 12 correspond one-to-one.

[0070] The dimensions of the first limiting element 13 are matched with the dimensions of the first sliding element 12. Generally, the radial dimension (e.g., diameter) of the inner contour of the first limiting element 13 is smaller than the radial dimension (e.g., diameter) of the first sliding element 12.

[0071] In some of these embodiments, the first limiting element 13 has a circular cross-section.

[0072] In some of these embodiments, the first limiting element 13 is a limiting ring.

[0073] Furthermore, the first base unit 10 also includes a plurality of first groove elements 14. The plurality of first groove elements 14 are distributed around the outside of the first base element 11, and are disposed covering the outer end of the corresponding first sliding element 12, and are engaged with the outer end of the abutment unit 30.

[0074] The first slot element 14 is disposed through the top and bottom surfaces of the first base element 11.

[0075] The number of first groove elements 14 matches the number of first sliding elements 12. Generally, the number of first groove elements 14 is equal to the number of first sliding elements 12, that is, the first groove elements 14 and the first sliding elements 12 correspond one-to-one.

[0076] The center of the first groove element 14 is set to coincide with the central axis of the first sliding element 12.

[0077] The dimensions of the first slot element 14 are matched with the dimensions of the first base element 11. Generally, the arc length of the first slot element 14 is less than 1 / 6 of the circumference of the outer contour of the first base element 11.

[0078] In some of these embodiments, the first slot element 14 has a fan-shaped cross-section.

[0079] In some of these embodiments, the first groove element 14 is a limiting groove.

[0080] like Figure 3 As shown, the first traction unit 20 includes a plurality of second groove elements 21 and a plurality of first traction elements 22. The plurality of second groove elements 21 are distributed around the outside of the first base unit 10 for threading wires; the plurality of first traction elements 22 are distributed around the first base unit 10 for fixing wires.

[0081] Specifically, a plurality of second groove elements 21 are distributed around the outside of the first base element 11 and are arranged adjacent to a plurality of first groove elements 14; a plurality of first traction elements 22 are distributed around the top of the first base element 11.

[0082] The second slot element 21 is disposed through the top and bottom surfaces of the first base element 11.

[0083] The dimensions of the second slot element 21 are matched with the dimensions of the first base element 11. Generally, the radial dimension (e.g., radius) of the second slot element 21 is smaller than the radial dimension (e.g., width) of the first base element 11.

[0084] In some of these embodiments, the cross-section of the second slot element 21 is arc-shaped.

[0085] In some of these embodiments, the second slot element 21 is a wire-passing slot.

[0086] like Figure 4 As shown, the clamping unit 30 includes several clamping elements 31, several third sliding elements 32, and several elastic elements 33. The clamping elements 31 are arranged around the outer side of the first base unit 10, and can reciprocate along the centripetal direction of the first base unit 10 to abut against the inner wall of the pipe, preventing the first base unit 10 from shifting. The third sliding elements 32 are disposed inside the corresponding clamping elements 31 and are slidably connected to the first base unit 10 and the second base unit 40, respectively. The inner end of the third sliding element 32 is connected to the bottom end of the adjusting unit 50. The elastic elements 33 are respectively sleeved on the corresponding third sliding elements 32, and the ends of the elastic elements 33 abut against the clamping elements 31 and the first base unit 10, respectively.

[0087] Specifically, a plurality of abutting elements 31 are arranged around the outside of the first base element 11 and are engaged with the first groove element 14. The abutting elements 31 can reciprocate along the centripetal direction of the first base element 11. A plurality of third sliding elements 32 are slidably connected to the first sliding element 12. The ends of the elastic elements 33 abut against the abutting elements 31 and the first limiting element 13 respectively.

[0088] The number of abutting elements 31 matches the number of first sliding elements 12. Generally, the number of abutting elements 31 is equal to the number of first sliding elements 12, that is, the abutting elements 31 and the first sliding elements 12 correspond one-to-one.

[0089] The dimensions of the abutting element 31 match the dimensions of the first base element 11. Generally, the height of the abutting element 31 is not greater than the thickness of the first base element 11.

[0090] The dimensions of the abutting element 31 are matched with the dimensions of the first groove element 14. Generally, the thickness of the abutting element 31 is not less than the thickness of the first groove element 14, and the arc length of the abutting element 31 is equal to the arc length of the first groove element 14.

[0091] In some of these embodiments, the cross-section of the abutment element 31 is fan-shaped.

[0092] In some of these embodiments, the abutting element 31 is an abutment plate.

[0093] In some of these embodiments, the third sliding element 32 is integrally formed with the abutting element 31.

[0094] The number of third sliding elements 32 matches the number of abutting elements 31. Generally, the number of third sliding elements 32 is equal to the number of abutting elements 31, that is, the third sliding elements 32 and abutting elements 31 correspond one-to-one.

[0095] The central axis of the third sliding element 32 is set to coincide with the center of the abutting element 31.

[0096] The dimensions of the third sliding element 32 are matched with the dimensions of the first limiting element 13. Generally, the radial dimension (e.g., diameter) of the third sliding element 32 is smaller than the radial dimension (e.g., diameter) of the inner contour of the first limiting element 13.

[0097] The dimensions of the third sliding element 32 are matched with the dimensions of the first base element 11. Generally, the axial dimension (e.g., length) of the third sliding element 32 is smaller than the radius of the outer contour of the first base element 11, and the axial dimension (e.g., length) of the third sliding element 32 is greater than the difference between the radius of the outer contour and the radius of the inner contour of the first base element 11.

[0098] In some of these embodiments, the cross-section of the third sliding element 32 is circular.

[0099] In some of these embodiments, the third sliding element 32 is a slider.

[0100] The number of elastic elements 33 matches the number of third sliding elements 32. Generally, the number of elastic elements 33 is equal to the number of third sliding elements 32, that is, there is a one-to-one correspondence between elastic elements 33 and third sliding elements 32.

[0101] In some of these embodiments, the elastic element 33 is a spring.

[0102] Furthermore, the clamping unit 30 also includes a plurality of second limiting elements 34. The plurality of second limiting elements 34 are disposed at the inner end of the corresponding third sliding element 32 and are limitedly connected to the first base unit 10 to prevent the clamping element 31 from separating from the first base unit 10.

[0103] In some of these embodiments, the second limiting element 34 and the third sliding element 32 are integrally formed.

[0104] The number of second limiting elements 34 matches the number of third sliding elements 32. Generally, the number of second limiting elements 34 is equal to the number of third sliding elements 32, that is, the second limiting elements 34 and the third sliding elements 32 correspond one-to-one.

[0105] The dimensions of the second limiting element 34 are matched with the dimensions of the first limiting element 13. Generally, the radial dimension (e.g., diameter) of the second limiting element 34 is larger than the radial dimension (e.g., diameter) of the inner contour of the first limiting element 13.

[0106] In some of these embodiments, the cross-section of the second limiting element 34 is circular.

[0107] In some of these embodiments, the second limiting element 34 is a limiting plate.

[0108] like Figure 5 As shown, the second base unit 40 includes a second base element 41, a plurality of second sliding elements 42, a first adjusting element 43, and a plurality of supporting elements 44. The second base element 41 is disposed inside the first base unit 10; the plurality of second sliding elements 42 are distributed around the interior of the second base element 41 and are slidably connected to the inner end of the abutment unit 30; the first adjusting element 43 is disposed on the top of the second base element 41 and is movably connected to the adjusting unit 50; the plurality of supporting elements 44 are disposed around the outer side of the second base element 41 and are connected to the first base unit 10.

[0109] Specifically, the second base element 41 is disposed inside the first base element 11; a plurality of second sliding elements 42 are respectively slidably connected to the inner end of the corresponding third sliding element 32; and a plurality of support elements 44 are connected to the first base element 11.

[0110] The dimensions of the second base element 41 are matched with the dimensions of the first base element 11. Generally, the radial dimension (e.g., diameter) of the outer contour of the second base element 41 is smaller than the radial dimension (e.g., diameter) of the inner contour of the first base element 11.

[0111] In some of these embodiments, the second base element 41 has an annular cross-section.

[0112] The second sliding element 42 is disposed through the outer surface and the inner surface of the second base element 41.

[0113] The number of second sliding elements 42 matches the number of third sliding elements 32. Generally, the number of second sliding elements 42 is equal to the number of third sliding elements 32, that is, there is a one-to-one correspondence between the second sliding elements 42 and the third sliding elements 32.

[0114] The dimensions of the second sliding element 42 are matched with the dimensions of the second limiting element 34. Generally, the radial dimension of the second sliding element 42 is not less than the radial dimension of the second limiting element 34.

[0115] In some of these embodiments, the cross-section of the second sliding element 42 is circular.

[0116] In some of these embodiments, the second sliding element 42 is a second slide rail.

[0117] The first adjusting element 43 is disposed through the top surface of the second base element 41.

[0118] In some of these embodiments, the first adjusting element 43 has a circular cross-section.

[0119] In some of these embodiments, the first adjusting element 43 is a threaded hole.

[0120] In some embodiments, the connection between the support element 44 and the second base element 41 includes, but is not limited to, integral molding and screw connection.

[0121] In some of these embodiments, the support element 44 is a support rod.

[0122] like Figure 6 As shown, the adjustment unit 50 includes a second adjustment element 51 and several flexible connecting elements 52. The second adjustment element 51 is movably disposed on the top of the second base unit 40 and can reciprocate along the axial direction of the second base unit 40 to drive the pressing unit 30 to reciprocate along the centripetal direction of the first base unit 10. Several flexible connecting elements 52 are wound around the bottom end of the second adjustment element 51, and the ends of the flexible connecting elements 52 are connected to the inner end of the pressing unit 30.

[0123] Specifically, the second adjusting element 51 is movably disposed on the top of the second base element 41 and is movably connected to the first adjusting element 43; the ends of a plurality of flexible connecting elements 52 are connected to the second limiting element 34.

[0124] The dimensions of the second adjusting element 51 are matched with the dimensions of the first adjusting element 43. Generally, the radial dimension (e.g., diameter) of the second adjusting element 51 is equal to the radial dimension (e.g., diameter) of the first adjusting element 43.

[0125] In some of these embodiments, the second adjusting element 51 is a threaded rod.

[0126] In some embodiments, the connection between the flexible connecting element 52 and the second adjusting element 51 includes, but is not limited to, binding.

[0127] In some embodiments, the connection between the flexible connecting element 52 and the third limiting element includes, but is not limited to, binding.

[0128] The number of flexible connecting elements 52 matches the number of second sliding elements 42. Generally, the number of flexible connecting elements 52 is equal to the number of second sliding elements 42, that is, there is a one-to-one correspondence between the flexible connecting elements 52 and the second sliding elements 42.

[0129] In some of these embodiments, the flexible connecting element 52 includes, but is not limited to, nylon wires, etc.

[0130] Furthermore, the adjustment unit 50 also includes a plurality of isolation elements 53. The plurality of isolation elements 53 are spaced apart at the bottom end of the second adjustment element 51, and a corresponding flexible connecting element 52 is provided between two adjacent isolation elements 53 to prevent the plurality of flexible connecting elements 52 from tangling.

[0131] In some of these embodiments, the isolation element 53 is integrally formed with the second adjustment element 51.

[0132] The number of isolation elements 53 matches the number of flexible connecting elements 52. Generally, the difference between the number of isolation elements 53 and the number of flexible connecting elements 52 is 1, that is, one isolation element 53 is provided between every two adjacent flexible connecting elements 52.

[0133] The dimensions of the isolation element 53 are matched with the dimensions of the second base element 41. Generally, the radial dimension (e.g., diameter) of the isolation element 53 is smaller than the radial dimension (e.g., diameter) of the inner contour of the second base element 41.

[0134] In some of these embodiments, the isolation element 53 has an annular cross-section.

[0135] In some of these embodiments, the isolation element 53 is a partition.

[0136] like Figure 7 As shown, the second traction unit 60 includes a second traction element 61. The second traction element 61 is disposed at the bottom of the second base unit 40 and is used to connect with the traction wire.

[0137] Specifically, the second traction element 61 is disposed at the bottom of the second base element 41 and is used to connect with the traction wire.

[0138] In some embodiments, the connection between the second traction element 61 and the second base element 41 includes, but is not limited to, a screw connection.

[0139] In some of these embodiments, the second traction element 61 is a traction ring.

[0140] The method of using this utility model is as follows:

[0141] Pass the wire through the second slot element 21 and tie it tightly to the first traction element 22;

[0142] After the traction steel wire is tied to the second traction element 61, the traction steel wire is passed through the buried pipe.

[0143] Place the first base element 11 on the inlet end of the buried pipe, rotate the second adjusting element 51 to release the wound flexible connecting element 52, so as to change the relative distance between the third sliding element 32 and the second base element 41. At this time, the pressing element 31 slides outward under the action of the elastic element 33 until the pressing element 31 abuts against the inner wall of the buried pipe.

[0144] Pull the traction steel wire to make the pre-buried pipe threading device slide from the inlet end of the buried pipe to the outlet end.

[0145] The advantage of this utility model is that by setting a movable clamping unit on the outside of the first base unit and setting a second base unit on the inside of the first base unit to adjust the length of the clamping unit, it can be used for threading wires through pipes of different sizes. At the same time, it can avoid the wires from getting tangled during the threading process, and solves the problems of wires getting tangled and the wires easily falling off at the binding joints with the steel wires in existing wire pre-embedded pipes.

[0146] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-embedded conduit wiring device for buildings, characterized in that, include: First base unit; The first traction unit is distributed around the outside of the first base unit and is used to pull and fix the wire. A clamping unit is movably disposed inside the first base unit and is slidably connected to and limited by the first base unit. The clamping unit can reciprocate along the centripetal direction of the first base unit to abut against the inner wall of the pipe so that the first base unit does not shift. The second base unit is disposed inside the first base unit and is slidably connected to the inner end of the abutting unit; An adjustment unit is movably disposed on the top of the second base unit. The bottom end of the adjustment unit is connected to the inner end of the abutting unit. The adjustment unit can reciprocate along the axial direction of the second base unit to drive the abutting unit to reciprocate along the centripetal direction of the first base unit. The second traction unit is located at the bottom of the second base unit and is used to connect with the traction wire.

2. The pre-embedded conduit wiring device according to claim 1, characterized in that, The first base unit includes: A first base element, wherein a second base unit is disposed on the inner side of the first base element, and a first traction unit is distributed around the outer side of the first base element; A plurality of first sliding elements are distributed around the interior of the first base element and are slidably connected to the abutting unit. The first sliding elements are disposed adjacent to the first traction unit. A plurality of first limiting elements are respectively disposed on the inner end of the corresponding first sliding element and abut against the abutting unit.

3. The pre-embedded conduit wiring device according to claim 2, characterized in that, The first base unit further includes: A plurality of first groove elements are distributed around the outside of the first base element and cover the outer end of the corresponding first sliding element, and are engaged with the outer end of the abutment unit.

4. The pre-embedded conduit wiring device according to claim 1, characterized in that, The first traction unit includes: A plurality of second slot elements are distributed around the outside of the first base unit for threading wires. A plurality of first traction elements are distributed around the first base unit for fixing the wires.

5. The pre-embedded conduit wiring device according to claim 1, characterized in that, The clamping unit includes: A plurality of abutting elements are arranged around the outer side of the first base unit. The abutting elements can reciprocate along the centripetal direction of the first base unit to abut against the inner wall of the pipe so that the first base unit does not shift. A plurality of third sliding elements are disposed on the inner side of the corresponding abutting elements and are slidably connected to the first base unit and the second base unit respectively. The inner end of the third sliding element is connected to the bottom end of the adjusting unit. A plurality of elastic elements are respectively sleeved on the corresponding third sliding element, and the ends of the elastic elements respectively abut against the clamping element and the first base unit.

6. The pre-embedded conduit wiring device according to claim 5, characterized in that, The clamping unit also includes: A plurality of second limiting elements are disposed at the inner end of the corresponding third sliding element and are limitedly connected to the first base unit to prevent the abutting element from separating from the first base unit.

7. The pre-embedded conduit wiring device according to claim 1, characterized in that, The second base unit includes: The second base element is disposed inside the first base unit; A plurality of second sliding elements are distributed around the interior of the second base element and are slidably connected to the inner end of the abutment unit; A first adjusting element is disposed on top of the second base element and is movably connected to the adjusting unit; A plurality of support elements are arranged around the outside of the second base element and connected to the first base unit.

8. The pre-embedded conduit wiring device according to claim 1, characterized in that, The adjustment unit includes: The second adjusting element is movably disposed on the top of the second base unit. The second adjusting element can reciprocate along the axial direction of the second base unit to drive the pressing unit to reciprocate along the centripetal direction of the first base unit. A plurality of flexible connecting elements are wound around the bottom end of the second adjusting element, and the ends of the flexible connecting elements are connected to the inner end of the abutting unit.

9. The pre-embedded conduit wiring device according to claim 8, characterized in that, The adjustment unit further includes: A plurality of isolation elements are spaced apart at the bottom end of the second adjusting element, and a corresponding flexible connecting element is provided between two adjacent isolation elements to prevent the plurality of flexible connecting elements from tangling.

10. The pre-embedded conduit wiring device according to claim 1, characterized in that, The second traction unit includes: The second traction element is disposed at the bottom of the second base unit and is used to connect with the traction wire.